Wellbore liner system

Abstract

Wellbore apparatus has been invented which, in at least certain aspects, includes a wellbore apparatus having a tubular member with a top end, a bottom end, a hollow portion, and a window therethrough, a sleeve positioned within the hollow portion of the tubular member, the sleeve having a top end and a bottom end, a diverter apparatus within or outside the tubular member and, optionally, below the bottom end of the sleeve, the sleeve movable so that the diverter, and the diverter directs the sleeve to the window and through the window into a bore extending beyond the window, and the window having an edge therearound to which the top end of the sleeve is weldable to sealingly secure the sleeve at the window

1. A liner system for lining a bore, the liner system comprising:
 a liner string; 
 a top flange on the liner string for abutting an edge of a window in a tubular member; and 
 activatable sealing material on the flange for sealing the flange around the edge of the window, wherein the activatable sealing material comprises thermite. 
 
   
   
     2. The liner system of  claim 1 , further comprising an initiation device for activating the sealing material. 
   
   
     3. A liner system for lining a bore, the liner system comprising:
 a liner string; 
 a top flange on the liner string for abutting an edge of a window in a tubular; and 
 activatable sealing material on the flange for sealing the flange around the edge of the window, wherein the activatable sealing material comprises an iron oxide-aluminum compound. 
 
   
   
     4. The liner system of  claim 3 , further comprising an initiation device for activating the sealing material. 
   
   
     5. A method of sealing a liner string in a window of a tubular member disposed in a wellbore, comprising:
 running the liner string with a top flange into the wellbore until the top flange is abutting an edge of the window; and 
 initiating a reaction between compounds of an activatable sealing material on the flange for welding the flange around the edge of the window, wherein the activatable sealing material comprises thermite. 
 
   
   
     6. The method of  claim 5 , wherein the initiating comprises activating the compounds by heat. 
   
   
     7. The method of  claim 5 , wherein the thermite comprises an iron oxide-aluminum compound.